Active control feasibility analysis of flexible circular truss antenna

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Yang, Yi^{a; *} | Yan, Guirong^a | Tang, Shan^b

Affiliations: [a] MOE Key Laboratory For Strength And Vibration, Xi'an Jiao Tong University, 710049, China | [b] Changjiang Institute of Survey, Planning, Design and Research, 430010, China

Correspondence: [*] Corresponding author. Tel.: +86 029 82660978; Fax: +86 029 82664849; E-mail: irongreat@163.com

Abstract: Active control is mainly used in geometry linear structure. In the article, we discuss the feasibility of active control for a geometry nonlinear structure, circular truss antenna. The simulation result shows the maximal active force amplitude and attenuation quotient is related with the effect of decreasing vibration closely. Improper parameters cause the "over-counteract" or "under-counteract" phenomenon in the fixed dominated time interval. In addition, we find proper active control doesn't cause the evident local cable mode in the receiving surface stretched by cables when the initial pre-strain of radial cable is enough.

Keywords: Active control, FEM, geometry nonlinear structure

DOI: 10.3233/JAE-2010-1286

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1573-1577, 2010